RHEL 7 : openstack-neutron (RHSA-2017:2449)

medium Nessus Plugin ID 210263

Synopsis

The remote Red Hat host is missing a security update for openstack-neutron.

Description

The remote Redhat Enterprise Linux 7 host has packages installed that are affected by a vulnerability as referenced in the RHSA-2017:2449 advisory.

OpenStack Networking (neutron) is a pluggable, scalable, and API-driven system that provisions networking services to virtual machines. Its main function is to manage connectivity to and from virtual machines.

Security Fix(es):

* A race-condition flaw was discovered in openstack-neutron where, following a minor overcloud update, neutron security groups were disabled. Specifically, the following were reset to 0: net.bridge.bridge-nf- call-ip6tables and net.bridge.bridge-nf-call-iptables. The race was only triggered by an update, at which point an attacker could access exposed tenant VMs and network resources. (CVE-2017-7543)

This issue was discovered by Paul Needle (Red Hat).

Tenable has extracted the preceding description block directly from the Red Hat Enterprise Linux security advisory.

Note that Nessus has not tested for this issue but has instead relied only on the application's self-reported version number.

Solution

Update the RHEL openstack-neutron package based on the guidance in RHSA-2017:2449.

Plugin Details

Severity: Medium

ID: 210263

File Name: redhat-RHSA-2017-2449.nasl

Version: 1.1

Type: local

Agent: unix

Family: Red Hat Local Security Checks

Published: 11/5/2024

Updated: 11/5/2024

Supported Sensors: Frictionless Assessment AWS, Frictionless Assessment Azure, Nessus Agent, Agentless Assessment, Continuous Assessment, Frictionless Assessment Agent, Nessus

Risk Information

VPR

Risk Factor: Low

Score: 3.6

Vendor

Vendor Severity: Important

CVSS v2

Risk Factor: Medium

Base Score: 4.3

Temporal Score: 3.2

Vector: CVSS2#AV:N/AC:M/Au:N/C:P/I:N/A:N

CVSS Score Source: CVE-2017-7543

CVSS v3

Risk Factor: Medium

Base Score: 5.9

Temporal Score: 5.2

Vector: CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:N/A:N

Temporal Vector: CVSS:3.0/E:U/RL:O/RC:C

Vulnerability Information

CPE: p-cpe:/a:redhat:enterprise_linux:openstack-neutron, cpe:/o:redhat:enterprise_linux:7, p-cpe:/a:redhat:enterprise_linux:openstack-neutron-rpc-server, p-cpe:/a:redhat:enterprise_linux:openstack-neutron-ml2, p-cpe:/a:redhat:enterprise_linux:python-neutron, p-cpe:/a:redhat:enterprise_linux:openstack-neutron-openvswitch, p-cpe:/a:redhat:enterprise_linux:openstack-neutron-common, p-cpe:/a:redhat:enterprise_linux:openstack-neutron-linuxbridge, p-cpe:/a:redhat:enterprise_linux:openstack-neutron-metering-agent, p-cpe:/a:redhat:enterprise_linux:openstack-neutron-sriov-nic-agent, p-cpe:/a:redhat:enterprise_linux:python-neutron-tests, p-cpe:/a:redhat:enterprise_linux:openstack-neutron-macvtap-agent

Required KB Items: Host/local_checks_enabled, Host/RedHat/release, Host/RedHat/rpm-list, Host/cpu

Exploit Ease: No known exploits are available

Patch Publication Date: 8/8/2017

Vulnerability Publication Date: 8/8/2017

Reference Information

CVE: CVE-2017-7543

CWE: 362

RHSA: 2017:2449

Detections

Analytics